AMD Radeon HD 7590M

The AMD Radeon HD 7590M (sometimes also called AMD Mobility Radeon HD 7590) is a middle class graphics card for laptops in 2011. It is basically a renamed Radeon HD 6650M with a 64 Bit memory bus and support for fast GDDR5 graphics memory. The fast GDDR5 memory and the cut in half memory bus should lead to a similar performance as the 6650M with 128 Bit DDR3 memory.

The 480 Stream processors are still based on the 5D architecture similar to the 5000 series. Therefore, the number of shaders is not comparable to the 1D cores of current Nvidia GPUs. The Tessellation performance should be improved (like the desktop 6800 series) with the new cards. The Stream processors can be used with DirectX 11, OpenGL 4.1, DirectCompute 11 and OpenCL. With the later two the cores can also be used for general computations like transcoding videos.